Reflecting on ParameterInfo for Generic class when ContainsGenericParameter is FALSE will return null

using System;
using System.Reflection;
public class MyClass<T>
{
    public delegate T MyDelegate();
    public MyClass(MyDelegate del){}
}
public class Program
{
    public static void Main()
    {
        Type type = typeof(MyClass<>);
        if(type == null)
        {
            Console.WriteLine("Type is: NULL");
        }
        else
        {
            Console.WriteLine("Type is: " + type.ToString());
        }
        ConstructorInfo constructor = type.GetConstructors()[0];
        if(constructor == null)
        {
            Console.WriteLine("ConstructorInfo is: Null");
        }
        else
        {
            Console.WriteLine("ConstrutorInfo is: "+constructor.ToString());
        }
        ParameterInfo parameter = constructor.GetParameters()[0];
        if(parameter == null)
        Console.WriteLine("ParameterInfo is: Null");
        else
        Console.WriteLine("Parameterinfo is: "+parameter.ToString());
        if(parameter.ParameterType.ContainsGenericParameters == false)
        {
            Console.WriteLine("FullName of Parameter type will be null:"+parameter.ParameterType.FullName);
        }
        else
        {
            Console.WriteLine("FullName of Parameter type:"+parameter.ParameterType.FullName);
        }
    }
}